I have an ill maran hen. She's a year and half old, and has had no previous illnesses. She's actually been one of my hardier birds. I let all the chickens out this morning, I noticed that she didn't come out, but didn't think anything of it. I just went out to check on them, and I found her lying on her side on the bottom of the coop. Her eyes are closed and her comb is a deep red with a purple tinge to it. I've quarantined her and don't think she'll last the rest of the day. We had a mite problem that I just recently got rid of using DE and a natural poultry protector spray. None of the other chickens are looking bad, but it's also hard to tell since a few of them are molting right now too. Thanks for any ideas/suggestions anyone has.